We have Metabo KHA24 24 Volt 1-Inch LiPower Rotary Hammer with Product Detail Drilling capacity in - Concrete 25/32 " - Steel 1/2 " - Softwood 7/8 " Maximum impact rate 4700 /min Maximum single-blow energy 2.2 J Li-Ion battery packs for up to 40% more power with up to 40% less weight. No memory effect! With "AIR COOLED" super quick charger AC 15 Plus for charging NiCd, NiMH and Li-Ion battery packs; with refresh function; charge time approx. 25 minutes (at 2.0 Ah) Die cast aluminium gear housing . The "Metabo KHA24 24 Volt 1-Inch LiPower Rotary Hammer" is best product for you. We recommended Metabo KHA24 24 Volt 1-Inch LiPower Rotary Hammer